<template>
  <div class="login" :style="loginStyles">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{ title }}</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaOnOff">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2022 All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg, getDingTalkConfig } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt, aesEncrypt, aesDecrypt } from '@/utils/jsencrypt'
import {getConfigKey} from "@/api/system/config";
import * as dd from 'dingtalk-jsapi';
import { Loading } from 'element-ui'
import Vue from "vue";
import router from "../router";
import md5 from 'md5'

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaOnOff: true,
      // 注册开关
      register: false,
      redirect: undefined,
      background:'',
      title: process.env.VUE_APP_TITLE,
      loginStyles:''
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
    this.getBaseConfig();
    if (dd.env.platform != 'notInDingTalk') {
      this.dingtalkLogin();
    }
  },
  methods: {
    dingtalkLogin(){
      dd.ready(() => {
        let loading = Loading.service({
          fullscreen: true,
          lock: true,
          text: '登录中...',
        });
        getDingTalkConfig().then((res)=>{
          dd.runtime.permission.requestAuthCode({
            corpId: res.data,
            onSuccess: (result)=> {
              this.$store
                .dispatch("DingTalkLogin", result.code)
                .then(() => {
                  this.$nextTick(() => {
                    loading.close();
                  });
                  this.$router.push({ path: this.redirect || "/" });
                })
                .catch(() => {
                  this.$nextTick(() => {
                    loading.close();
                  });
                });
            },
            onFail : (err)=> {
              this.$nextTick(() => {
                loading.close();
              });
            }
          });
        })
      });
    },
    getCode() {
      getCodeImg().then(res => {
        this.captchaOnOff = res.data.captchaOnOff === undefined ? true : res.data.captchaOnOff;
        if (this.captchaOnOff) {
          this.codeUrl = "data:image/gif;base64," + res.data.img;
          this.loginForm.uuid = res.data.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm.username = username === undefined ? this.loginForm.username : decrypt(username)
      this.loginForm.password = password === undefined ? this.loginForm.password : decrypt(password)
      this.loginForm.rememberMe = rememberMe === undefined ? false : Boolean(rememberMe)
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", encrypt(this.loginForm.username), { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          console.log(this.loginForm)
          this.$store.dispatch("Login", {
            ...this.loginForm,
            username: aesEncrypt(this.loginForm.username.trim()),
            password: aesEncrypt(md5(this.loginForm.password.trim()))
          }).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
          }).catch(() => {
            this.loading = false;
            if (this.captchaOnOff) {
              this.getCode();
            }
          });
        }
      });
    },
    getBaseConfig() {
      getConfigKey('sys.image.preview.url').then(res => {
        getConfigKey("sys.pc.base.config").then(response => {
          const data = JSON.parse(response.data || '{}')
          this.title = data.webSiteName || this.title;
          this.background = data.background ? res.data + data.background : '../assets/images/login-background.jpg';
          this.loginStyles = 'background-image: url("'+this.background+'");';
          document.title = this.title
          this.$store.dispatch('settings/setTitle', this.title)
          const link = document.querySelector('link[rel*="icon"]') ||document.createElement('link')
          link.href = this.$imagePreviewUrl + data.icon
        });
      })
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  /*background-image: url("../assets/images/login-background.jpg");*/
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
